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PN ATI Comprehensive Predictor
1. What are the primary causes of respiratory acidosis?
- A. Hypoventilation and lung disease
- B. Hyperventilation and pneumonia
- C. Increased oxygen saturation and tachypnea
- D. Dehydration and hypoxia
Correct answer: A
Rationale: The correct answer is A: Hypoventilation and lung disease. Respiratory acidosis occurs when there is an accumulation of CO2 in the body due to inadequate ventilation. Hypoventilation, which reduces the elimination of CO2, and lung diseases that impair gas exchange are the primary causes. Choice B is incorrect because hyperventilation, not hypoventilation, leads to respiratory alkalosis, not acidosis. Choice C is incorrect because increased oxygen saturation and tachypnea do not directly cause respiratory acidosis. Choice D is incorrect as dehydration and hypoxia do not typically lead to respiratory acidosis.
2. A client with a new prescription for prednisone for the treatment of Addison's disease needs teaching. Which instruction should the nurse include?
- A. Take the medication with food
- B. Avoid taking aspirin
- C. Schedule a bone density test
- D. Expect increased appetite
Correct answer: C
Rationale: The correct instruction for the nurse to include is to schedule a bone density test. Prednisone can lead to reduced bone density, making regular monitoring crucial for clients on long-term therapy. Instructing the client to take the medication with food (choice A) or avoid taking aspirin (choice B) are not directly related to prednisone therapy for Addison's disease. While prednisone can cause increased appetite, it is not the priority instruction in this scenario, compared to monitoring bone density (choice D).
3. A healthcare provider is checking a newborn's vital signs. Which of the following methods of temperature measurement should the healthcare provider use?
- A. Rectal
- B. Axillary
- C. Oral
- D. Tympanic
Correct answer: B
Rationale: The axillary method is the most appropriate for newborns because it is non-invasive and safe. Rectal temperature measurement can be uncomfortable and poses a risk of injury, especially in newborns. Oral temperature measurement is not recommended for newborns due to their inability to cooperate and potential inaccuracies. Tympanic temperature measurement may not be as accurate in newborns compared to older children or adults.
4. What are the key signs of hyperkalemia and how should it be treated?
- A. Elevated potassium levels, muscle weakness; administer calcium gluconate
- B. Decreased potassium levels, confusion; administer potassium chloride
- C. Elevated sodium levels, bradycardia; administer sodium bicarbonate
- D. Low sodium levels, muscle cramps; administer sodium chloride
Correct answer: A
Rationale: The correct signs of hyperkalemia include elevated potassium levels and muscle weakness. The treatment involves administering calcium gluconate to help stabilize the heart. Choice B is incorrect as hyperkalemia is characterized by elevated, not decreased, potassium levels. Choice C is incorrect as hyperkalemia does not involve elevated sodium levels, and the treatment is not sodium bicarbonate. Choice D is incorrect as hyperkalemia does not lead to low sodium levels, and sodium chloride is not the treatment for hyperkalemia.
5. How should a healthcare professional manage a patient with a suspected deep vein thrombosis (DVT)?
- A. Administer anticoagulants and monitor for bleeding
- B. Elevate the limb and administer pain relief
- C. Restrict mobility and apply warm compress
- D. Administer IV fluids and provide bed rest
Correct answer: A
Rationale: Corrected DVT management involves administering anticoagulants to prevent clot growth and monitoring for signs of bleeding. Elevating the limb and administering pain relief (Choice B) may help alleviate symptoms but do not address the underlying issue of preventing clot progression. Restricting mobility and applying warm compress (Choice C) could potentially dislodge the clot and worsen the condition. Administering IV fluids and providing bed rest (Choice D) are not primary interventions for managing DVT.
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